How can natural selection account for the long tounges of butterflies

The reactions that occur in the ribosome, where amino acids are combined to form proteins are anabolic or catabolic?

About __ of the mass of the cell is water

What is the main difference between the central nervous system (cns) and the peripheral nervous system (pns)? .the cns involves the brain and spinal cord, and the pns involves the body nerves. the cns involves the body nerves, and the pns involves the brain and spinal cord. the cns involves sensory neurons, and the pns involves motor neurons. the cns involves motor neurons, and the pns involves sensory neurons.